Gas-machine.



PATENTED SEPT. 17, 1907.

P. B. JOHNSON.

GAS MACHINE.

APPLIOATION FILED NOV. 24. 1906.

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PATENTED SEPT. 17, 1907.

P. B. JOHNSON.

GAS MACHINE.

APPLICATION FILED NOV.24.'1906.

3 SHEETS-SHEET 2.

l Vii mam UNITED STATES PATENT OFFICE.

PETER B. JOHNSON, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO JAMES R. CRAIG, OF THAYER, INDIANA.

GAS-MACHINE.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed November 24:, 1906. Serial No. 344,880.

To all whom flit may concern:

Be it known that I, PETER B. JOHNSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Gas-Machines, of which the following is a specification.

This invention or apparatus consists of means for making gas from gasolene or other suitable gaseous fluid and air, the principal features of the invention being a source of compressed air, an air supply regulator which is automatically operated by said compressed air, a chamber or tank for holding a supply of gasolene or other gaseous fluid, a controlling device, the principal feature of which is a three-way valve, which controls the regulator which supplies air into a mixing chamber or carbureter where the said fluid is vaporized or rendered into gas and then discharged into the main or gas feeding pipe.

A feature of this apparatus is that it is compact and I is especially adapted for use where the gas is to be made on a small scale, such as for farms, residences, stores, etc., but the apparatus can also be used on a large scale as well, and it requires but little skilled attention.

In the accompanying drawings, Figure 1 is a front elevation, partly in section, of the machine or apparatus. Fig. 2 is avertical section of the air supply regulator. Fig. 3 is a side elevation showing the mechanism for operating the regulating valves. Figs. 4 and 5 are details in end elevation of the parts of the valve operating mechanism. Fig. 6 is a vertical section of one of the valves.

Referring specifically to the drawings, 10 indicates an air pump, for which may be substituted any other means of compressing or supplying compressed air. The pump is connected by a pipe 10, having a check valve 10 to a holder 11 in which the compressed air is stored. This holder is connected by a pipe 11* to a controlling valve 12 which will form the subject of a separate application. A branch pipe 11 leads from the pipe 11 to the gasolene reservoir 13, and said pipe has a hand valve 11, a check valve 11 and a pressure gage 11 The compressed air furnishes pressure to the gasolene in the tank 13 and tends to force the same through an outlet pipe 13, which leads to a valve 14 which has a pipe 62 leading to the carbureter and tank 25.

The action of the regulating valve 12 is controlled by a regulator indicated as a whole at 15, which operates a tripping device to control the movement of the regulating valve, as hereinafter explainedv The air supply regulator 15 consists of a double walled tank or vessel 15, the Walls forming an annular well to provide a water seal for the bell 15 23 is an air intake pipe which opens into the bell and extends from and is controlled by a valve 230, actuated as hereinafter explained.

17 is an air inlet pipe for compressed air, which extends from the valve 12 and opens into a central cylinder 16 produced within the tank 15. This cylinder has therein a piston 16, the rod 16 of which is connected to the top of the bell 15 18 is a lever hinged at 18" to the bell 15 and fulcrumed upon a, pivoted bar 19 on the side of the carbureter 25. This lever carries a tripping rod 20 for tripping the valve 12 in the manner to be described.

61 is an outflow air pipe which extends from the regulator 15 to the carbureter or mixing chamber 25, and supplies the latter with air.

The valve 12 is constructed and operates to regulate and control the supply of compressed air admitted to the cylinder 16 in the regulator 15 through the pipe 17, which extends from said valve to said cylinder. Within the pipe 13 between the gasolene tank 13 and the carbureter 25 is a valve 14 which serves to measure and regulate the supply of gasolene from the tank 13 to the carbureter. The end of the pipe 13 dips into the gasolene tank to near the bottom thereof, as indicated in dotted lines in Fig. 1, and when the valve is opened the air pressure in the top of the gasolene tank causes a quantity of the oil to be forced through the pipe l3 and supplied to the carbureter.

The means for operating the valves 12 and 14 are as follows: 7 O is a rock shaft mounted upon a standard 70 and having at one end a disk 71 loosely mounted thereon. This disk has a lug 72 to which is connected the red 20, which is connected to the lever 18 as heretofore described. The disk 71 is provided with projecting lugs 73 (see Fig. 4). Fixed upon the shaft 70, opposite the disk 71, is another disk 74, provided with a lug 75 on the side toward the disk 71 and with fingers 76 on the opposite side. The lugs 73 are so arranged that one of them will strike the lug 75 when turned in either direction and will thus turn the disk 74 and the shaft 75 in one direction or the other. At the end of the rock shaft 70, opposite to the disks referred to, it has a crank 7 7 which is connected to a spring 78, and this spring completes the throw of the shaft one Way or the other when it is turned beyond center by the parts just described. 77 is a dash pot having a piston connected to the crank and which serves to cushion the throw of the valve. The dash pot is pivoted so that it will turn to proper alincment with the piston. The stem of the valve 12 has a T arm 80 projecting between the fingers 76, and when the disk 74 is turned by the means above described the valve stem is turned and the valve is operated accordingly, to control the inlet to and exhaust from the cylinder 16.

The measuring or charging valve 14, located in the pipe 13 as above reierred to, is employed to regulate the amount of gasolene entering the carbureter 25. Its stem has a crank arm 81 connected by a rod 81 to the arm 80, so that its operation is simultaneous with the valve 12. I

The valve 12 is disclosed in suflicient detail in Fig. 6. It is a three-way valve, having a casing with two opposite branches in each of which is a valve head having rods connected to a central crank having two arms which project from the valve stem. The valve disk or heads are so arranged that when one is closed the other is opened. The valve casing has a central circular chamber 91 into which the valve stem 92 exten ds. This stem carries the T arm 80, above referred to. The stem has two crank arms 94 to which are attached rods 95 which extend in opposite directions and are provided at the ends with valve disks 96 located in tubular branches 97 projecting from the body oi the valve casing. The disks close against valve seats 98 in said branches. The pipe l1 heretofore reierred to, leads from the compressed air tank into the upper branch 97, and the other branch exhausts into the atmosphere. The third port or opening 99 is connected by the pipe 17 to the cylinder 16 in the air supply regulator.

The inlet valve 230 at the end oi the pipe 23 is provided with a disk 231 and a rod 232 which is also connected to the arm 80, and when turned by the valve operating device, above described, also opens or closes the valve 230, and controls the air supply to hell 15*.

In the operation of the machine, the tank 13 is charged with gasolene and the tank 11 with compressed air. Some of this air is supplied to the gasolene tank to produce pressure in the same, by means oi the branch 11 irom the pipe 11. At the start the bell 15 is in lowered position, and the valve 12 is in open position to let compressed air pass from the pipe ll. through the valve, into the pipe 17 and into the cylinder 16. This raises the piston 16 and the bell 15 At this time the valve 230 is open, thus permitting air to enter the bell through the pipe 23 and allowing the bell to rise readily. When the bell 15" reaches its top position the lever 18 raises the rod 20 and operates the tripping device of the valve 12, and immediately closes the said valve, and also closes the valve 230, and opens the valve 14 which admits a charge oi gasolene into the pipe 62 which takes it to the carburetor. Thus the valve operating device or tripper operates the three valves 12, 14: and 230 simultaneously, by means oi the T arm 80. On the commencement oi the down stroke of the bar 18, the exhaust end oi the valve 12 is open, thus allowing direct outlet from the cylinder 16, through the pipe 17, to the exhaust. The

upper disk is closed, cutting oil the supply of com-- pressed air into the valveirom the pipe 1l and also closing the valve 14-, cutting oii the supply of gasolene.

011 the bell l5 reaching near the lower end of its stroke, the rod 20 trips the valves again as in the first instance and the operation is repeated. The charge of gasolene mentioned in the first operation having entered the carbureter a supply oi air is also sent into the same by means of the tube 61 as the bell is sinking or lowering. The bell on rising again releases another charge of gasolene into the carburetor and the other features of the operation are repeated.

The devices mentioned supply and charge the carbureter with a suitable portion of gasolene and air at proper intervals to mix the same and produce gas of a proper quality with definite results, and the operation of the machine is automatic, as long as the supply of compressed air is maintained. Water under pressure may be used instead of compressed air in tank 11 or from any suitable source, in which case no connection is made from the tank 11 to the gasolene, but compressed air may be iurnished by an air pump to the gasolene tank.

I claim:

1. In a gas apparatus, in combination, a carhureter hav iug an oil supply pipe thereto and an air supply pipe thereto, a valve in the oil supply pipe, an air supply device connected to said air supply pipe and having a rising and falling bell acting as a pump to force air to the carbureter, a compressed air tank connected by a pipe to the air supply device and provided with means to raise and lower the bell, a controlling valve in the last mentioned pipe, said valve being connected to the valve in the oil supply pipe to operate the latter simultaneously, and a tripping device connected to the bell and arranged to operate the valves according to the rise and {all of said hell 2. In a gas apparatus, the combination with an air supply device having a valve inlet pipe and acting as a pump to force air to the carbureter, and a source of fluid pressure operatively connected to said device, of a valve in said connection arranged to alternately supply pressure to and exhaust pressure from said device, a tripping mechanism for the valve comprising a rock shaft having tappets arranged to strike the valve stem and throw the valve, and a connection between the rock shaft and the air supply device and its inlet valve constructed to automatically operate said shaft and valve according to the operation of the pump.

3. In a gas making apparatus, in combination, a compressed air tank, a carbureter, an air supply regulator connected to the carburetor and having a rising and falling hell, a pipe connecting the oil tank and the carburetor having a valve therein, a cylinder having a piston con neeted to the said bell, a pipe connecting the compressed air tank and said cylinder and having therein an inlet and exhaust valve controlling the supply to and exhaust from said cylinder, and a connection between the said bell and both of said valves arranged to simultaneously operate the latter according to the rise and fall of the bell.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

- PETER B. JOHNSON.

Witnesses:

RICHARD W. Monmson, hiAItY E. BLACK. 

